USER root
RUN useradd -m -s /bin/rbash dmitry
RUN mkdir /home/dmitry/programs
RUN cgcreate -a dmitry -t dmitry -g memory:bot
RUN echo 20000000 > /sys/fs/cgroup/memory/bot/memory.limit_in_bytes
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Step 16/50 : RUN cgcreate -a dmitry -t dmitry -g memory:bot
---> Running in 80f9616c00a3
cgcreate: can't create cgroup bot: Cgroup, operation not allowed